Edit Package Manifest Button in the Inspector becomes disabled after an Undo action

Steps to reproduce:

1. From Package Manager window, select a Custom package
2. In the Inspector window, click the Edit button
3. Perform an Undo action
4. Observe the Edit button in the Inspector again

Actual results: After the Undo, the Edit button becomes disabled

Expected results: The Edit button remains functional after performing an undo action

Reproducible with versions: 6000.3.0a4

Can’t test with versions: 6000.3.0a2 or earlier (Feature was introduced in 6000.3.0a3)

Tested on (OS): macOS 15.5, Ubuntu 24